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| author | Kartik Agaram <vc@akkartik.com> | 2018-12-04 00:29:06 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-12-04 00:29:06 -0800 |
| commit | cf02c20bb02f5d2fbfee5557baf68c0e2ca5a042 (patch) | |
| tree | 8f1d896a0134e8353ccf01add61fb6c732103861 /subx/057stop.subx | |
| parent | 7cb326df5bb9739d948dd4f8b32019f1bf6e4ef3 (diff) | |
| download | mu-cf02c20bb02f5d2fbfee5557baf68c0e2ca5a042.tar.gz | |
4832
Let's start adding ':end' labels in all functions, just because it helps us visualize where function calls end in traces, thanks to the '--map' commandline argument.
Diffstat (limited to 'subx/057stop.subx')
| -rw-r--r-- | subx/057stop.subx | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/subx/057stop.subx b/subx/057stop.subx index fd2afde2..5788cb72 100644 --- a/subx/057stop.subx +++ b/subx/057stop.subx @@ -87,6 +87,7 @@ tailor-exit-descriptor: # ed : (address exit-descriptor), nbytes : int -> <void 89/copy 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to *ECX # initialize ed->value c7/copy 1/mod/*+disp8 1/rm32/ECX . . . . 4/disp8 0/imm32 # copy to *(ECX+4) +$tailor-exit-descriptor:end: # . restore registers 59/pop-to-ECX 58/pop-to-EAX @@ -113,6 +114,7 @@ $stop:fake: 89/copy 1/mod/*+disp8 0/rm32/EAX . . . 1/r32/ECX 4/disp8 . # copy ECX to *(EAX+4) # non-local jump to ed->target 8b/copy 0/mod/indirect 0/rm32/EAX . . . 4/r32/ESP . . # copy *EAX to ESP +$stop:end: c3/return # doesn't return to caller test-stop-skips-returns-on-exit: @@ -174,6 +176,7 @@ _test-stop-1: # ed : (address exit-descriptor) # . . call e8/call _test-stop-2/disp32 # should never get past this point +$_test-stop-1:dead-end: # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # signal test failed: check-ints-equal(1, 0, msg) @@ -201,6 +204,7 @@ _test-stop-2: # ed : (address exit-descriptor) # . . call e8/call stop/disp32 # should never get past this point +$_test-stop-2:dead-end: # . epilog 89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP 5d/pop-to-EBP |